Temperature evolution during fatigue damage

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • B. Yang
  • P. K. Liaw
  • M. Morrison
  • R. A. Buchanan
  • J. Y. Huang
  • R. C. Kuo
  • J. G. Huang
  • D. E. Fielden

Detail(s)

Original languageEnglish
Pages (from-to)419-428
Journal / PublicationIntermetallics
Volume13
Issue number3-4
Publication statusPublished - Mar 2005
Externally publishedYes

Abstract

Fatigue damage is closely related to plastic deformation and heat dissipation, which affect the temperature of the materials. In the current research, a state-of-the-art infrared-thermography camera has been used as a nondestructive evaluation (NDE) method to investigate the temperature evolutions in both crystalline and amorphous materials during fatigue experiments. Fatigue-damage processes, such as the Lüders band growth in reactor-pressure-vessel (RPV) steels and shear-band evolution in bulk metallic glasses (BMGs), have been observed in situ and analyzed by thermography. Theoretical models combining fracture mechanics and thermodynamics have been formulated to quantify the temperature-evolution processes during fatigue. Specifically, the plastic work in RPV steel during low-cycle fatigue has been calculated and the fatigue life has been predicted from the observed temperature. The prediction matches the experimental data quite well. © 2004 Elsevier Ltd. All rights reserved.

Research Area(s)

  • B. Glasses, metallic, B. Mechanical properties at ambient temperature, F. Mechanical testing, F. Non-destructive evaluation

Citation Format(s)

Temperature evolution during fatigue damage. / Yang, B.; Liaw, P. K.; Morrison, M.; Liu, C. T.; Buchanan, R. A.; Huang, J. Y.; Kuo, R. C.; Huang, J. G.; Fielden, D. E.

In: Intermetallics, Vol. 13, No. 3-4, 03.2005, p. 419-428.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review